Where is my oil going?
03-20-12, 12:36 AM
#16
Lexus Champion
recent update: talked to a lexus tech person with 20yrs at same dealer. He told me if the pcv valve was bad that it would be forcing oil into #1 or #2 cylinder and would show on the plug. Pulled #2 plug and it was fine. He said as far as sludge goes if oil was changed every 5k or less should have no problem. The first rx's off the line had valve covers that had smaller baffles for even oil flow. Lexus fix is to put a modified valve cover and gaskets on. Rear one being a jreal B**ch. He suggested to do 2 oil changes with 1/2 Valvoline HM and Pennzoil HM to gently clean any sludge if i was concerned about it. I guess that Pennzoil HM cleans very good but could be overly aggressive letting chunks break loose. Will try it and see. Might be 3 to 4 months tho. Thanks for all the help. If anybody has further suggestions i would like to hear them.
03-20-12, 07:52 AM
#17
I had the same problem with mine and as a last resort had the rear valve cover replaced with the newer version on my 2000 and it cured my oil consumtion problem. I posted a thread on this.
03-20-12, 08:38 PM
#18
Lexus Test Driver
If you see a "modern", i.e., post-1985, car with oil smoke coming from the tailpipe, they're burning WAY more than a quart every 500 miles.
BTW, I saw a late-90's Panther-chassis Ford, a Crown Vic, smoking, yesterday. Sitting at a light, a stream of blue smoke eminating from the tail pipe. When the light turned green, it's like they were running a mosquito fogger.
Those folks will be walkin', soon, if they don't add oil every time they get gasoline.
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